Parking Quiz: How Many DPT Officers Per Square Mile in SF?

It's no secret that parking in the city is a bitch. So we've enlisted local parking guru and author of Finding the Sweet Spot, David LaBua, to dish out weekly tips on navigating the ins and outs of city parking.

Doesn't it seem like DPT officers are absolutely everywhere, all the time? How do they do it? Take this quiz and check back after lunch for the brutal truth to be revealed.